Weapon's Spiritual Awakening

You awake your imbued weapon with spectral energy, gaining magic control over its movement and improving its abilities, yet maintaining any previous abilities. The weapon must be in your hand when you cast the spell.

This lasts for the duration of the spell or until you dismiss your magic influence on it (Either by deactivating or losing conscience), with the weapon remaining where it is. 

NOT DECIDED YET: When you cast the spell you can use your action to make an attack.

As a bonus action on your turn, you can move the weapon up to 20 feet, with 60 feet maximum of distance, and repeat the attack against a creature within 5 feet of it.

NOT DECIDED YET: YOU CAN REPEAT THE ATTACK USING YOUR ACTION TO COMMAND THE WEAPON. 

Now the weapon utilizes your spellcasting ability modifier to attack and counts as a magic attack. On a hit, the target takes the damage of the weapon plus force damage equal to 2d8.

NOT DECIDED YET: If the weapon applies any other damage than bludgeoning, slashing, or piercing damage, the spectral energy changes and does the matching type instead of force damage.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, either the damage increases by 1d8 for every two slot levels above the 5th or the duration time increases by 1 minute for every slot level above the 4th.

NOT DECIDED YET: When you cast this spell using a spell slot of 7th level or higher, the weapon gains teleportation with a 60 feet range, being able to either move or teleport every turn. The weapon comes back to your hand when the spell effect wore off and you are conscient.

Spell Preparation: Before you're able to cast this spell you must imbue your weapon with your energy, creating a link to the weapon, and unlocking its abilities (Check the second NOT DECIDED YET). This counts as an atunned item. For creating this link you must spend 7 (Or 30) consecutive days with your spell, using 2 4th level spell slots (or 1 5th level) per day "casting" this spell in the weapon. If you skip one day, you must start from the beginning. After that, you're able to cast this spell.